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Service bulletin NCU2021070018

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10205415
Published by NHTSA2021-12-20
Manufacturer's numberNCU2021070018
Manufacturer's date2021-10-01
NHTSA componentEQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

NHTSA's summary

NEW SERVICE CAMPAIGN LAUNCH INFORMATION.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Equipment and accessories, Labels and manuals

Vehicles listed
MERCEDES-BENZ GLA 2502021
MERCEDES-BENZ GLB 2502021
MERCEDES-BENZ GLC 3002021
MERCEDES-BENZ GLC 350 E2021
MERCEDES-BENZ GLE 3502021
MERCEDES-BENZ GLE 350 E2021
MERCEDES-BENZ GLE 4502021
MERCEDES-BENZ GLE 5802021
MERCEDES-BENZ GLS4502021
MERCEDES-BENZ GLS5802021
MERCEDES-MAYBACH GLS 6002021

Listing a model year does not mean every vehicle of it is concerned: the document says which.